8CO2(g) + 9H2O(g) --> C8H18(g) + 12.5O2(g)
Octane and water do not react and so there is not an equation.
Octane is C8H18 .
C + 2S -> CS2 Enthalpy of formation is the change in enthalpy for the formation of a substance from its elements.
The chemical formula of octane is C8H18.
octane + oxygen -------> carbon dioxide + water
4Na+2O2=2Na2O
An equation refers to a reaction, not an individual compound. The formula of potassium oxide is K2O. If you mean the equation for its formation from the elements, it is 4K + O2 --> 2K2O.
Octane + oxygen ---> carbon dioxide + water Lulu
octane + oxygen --> water + carbon dioxide
C8 h18
The equation is 2c8h18 + 25o2 --> 16co2 + 18h2o.